| Membership Code | Concept Code | Description | Code System | Code System Version |
|---|---|---|---|---|
| ANM | ANM | animal | EntityClass | 2.01.4 |
| CER | CER | certificate representation | EntityClass | 2.01.4 |
| CHEM | CHEM | chemical substance | EntityClass | 2.01.4 |
| CITY | CITY | city or town | EntityClass | 2.01.4 |
| CONT | CONT | container | EntityClass | 2.01.4 |
| COUNTRY | COUNTRY | country | EntityClass | 2.01.4 |
| COUNTY | COUNTY | county or parish | EntityClass | 2.01.4 |
| DEV | DEV | device | EntityClass | 2.01.4 |
| ENT | ENT | entity | EntityClass | 2.01.4 |
| FOOD | FOOD | food | EntityClass | 2.01.4 |
| GROUP | GROUP | Group | EntityClass | 2.01.4 |
| HCE | HCE | health chart entity | EntityClass | 2.01.4 |
| HOLD | HOLD | holder | EntityClass | 2.01.4 |
| LIV | LIV | living subject | EntityClass | 2.01.4 |
| MAT | MAT | material | EntityClass | 2.01.4 |
| MIC | MIC | microorganism | EntityClass | 2.01.4 |
| MMAT | MMAT | manufactured material | EntityClass | 2.01.4 |
| MODDV | MODDV | imaging modality | EntityClass | 2.01.4 |
| NAT | NAT | Nation | EntityClass | 2.01.4 |
| NLIV | NLIV | non-person living subject | EntityClass | 2.01.4 |
| ORG | ORG | organization | EntityClass | 2.01.4 |
| PLC | PLC | place | EntityClass | 2.01.4 |
| PLNT | PLNT | plant | EntityClass | 2.01.4 |
| PROVINCE | PROVINCE | state or province | EntityClass | 2.01.4 |
| PSN | PSN | person | EntityClass | 2.01.4 |
| PUB | PUB | public institution | EntityClass | 2.01.4 |
| RGRP | RGRP | group | EntityClass | 2.01.4 |
| STATE | STATE | state | EntityClass | 2.01.4 |